PMU - Year 1 Physics - Part 3(A)

1

Electromagnetic Waves are composed of:

1

Which of the following electromagnetic wavelengths λ can be detected by the human eye:

1

Radiation is monochromatic when:

1

Wavelength λ of visible light is in the range of:

1

Frequency of visible light is higher than the frequency of:

1

Metal vessels are not used in microwave ovens because:

1

The expression electromagnetic waves oscillate means:

1

Which is the most significant application of de Broglie wavelength in medicine:

1

Radiation protection standards for electromagnetic waves (EM) limit three of the following quantities. Which quantity is NOT limited:

1

Total internal reflection can occur if light passes from:

1

The most significant application of total internal reflection in medicine:

1

Which mode of light reflection is called diffusion:

1

Which reflection mode of light if called specular:

1

The coefficient of reflection of light does not depend on:

1

Endoscopes are used in medicine for examination of:

1

The imagine formed by a direct opthalmoscope (magnification up to 15x) is:

1

The image formed by a indirect ophthalmoscope (magnificantion 2x / 5x) is:

1

Absorption spectrum of melanin (skin pigment, iris, hair, etc) is msotly in the:

1

Analysis of colloidal solutions is carried out using:

1

When light is polarized, the electric field vector E oscillates in the direction:

1

When light is completely polarized, the electric field vector E oscillates

1

The angle of rotation of the plane of polarized light coefficient is proportional to: (C - Concentration of solution in %; l - thickness of the substance layer in dm)

1

The specific rotation angle for camphor [+42 0] means that this pharmaceutical rotates the plane of polarization:

1

The rotation angle of polarized light α (a property of optically active pharmaceuticals) is determined by the method of:

1

How do polarized microscopes improve on conventional optical microscopes

1

Which optical phenomenon, other than polarization, is used in polarimetry:

1

The concentration of which substance can be determined using polarimetry

1

Longitudinal waves cannot be:

1

The atmospheric ozone layer absorbs mostly:

1

Energy of UV light is lower than the energy of

1

UV radiation is:

1

UV radiation has wavelengths shorter than:

1

UV radiation has wavelengths longer than

1

Sun protection factor (SPF) specifies UV protection mainly in the region of:

1

Why is UV light in the 10 nm to 200 nm range NOT included in UVA, UVB or UVC ranges:

1

The percentage of UV light reaching Earths surface from the total solar spectrum is:

1

IR rays are:

1

The main effect of IR rays is:

1

The energy of IR is higher than that of:

1

The IR electromagnetic spectrum has wavelength range of:

1

Band A of IR radiation is :

1

Band B of IR radiation is :

1

Band C of IR radiation is :

1

Which type of life is NOT fully absorbed in water:

1

Thermography is diagnostic imaging method which is:

1

Thermography uses:

1

Emission spectrum of the human body is in the:

1

IR rays do NOT have application in:

1

What is the approximate IR power emitted from the human body in room temperature: